CVE-2026-64386critical

smb: client: fix query_info() replay double-free

28Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 9.8epss 0.5%

probabilidad de explotación

0.5%top 63% de las CVE

explotación observada

noninguna fuente lo reporta

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix query_info() replay double-free A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_query_info_init() fails before the next send, cleanup retains the previous buffer type and frees that response again. Reset response bookkeeping before each attempt to prevent the stale free.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Productos afectados

Linux · Linux

Referencias

https://git.kernel.org/stable/c/100fb7c455fa86d248b8bd7bb9de757c192870b4 https://git.kernel.org/stable/c/2a88561d66eb855813cf004a0abe648bbb17de5e https://git.kernel.org/stable/c/3c81dda84799f76b42aec598564316e2964440db https://git.kernel.org/stable/c/89234773e8348918111aa15f6922b58cf3843364 https://git.kernel.org/stable/c/f1add4acb656f5a82806a1ab0e63fed3d8b1bfca